package Example30;

public class Example30 {
    public static void main(String[] args) {
        int result=divide(4,-2);
        System.out.println(result);
    }
    public static int divide (int x,int y){
        if(y<0){
//            throw new DivideByMinusException("除数是负数");
            int result=x/y;
            return result;
        }
        return x;
    }
}
